1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

Straight Axle Conversion

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Old 09-22-2009, 01:08 PM
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Default Straight Axle Conversion

Probley going to throw a straight axle and transfercase on my 1993 Cummins about christmas time or so, I get like 2-3 weeks off school. Just wandering if anyone has done it cause im curious about steering. I already know the other stuff involed so not a big deal and I built my 75 GMC mud truck so not to worried about it just worried about hooking up the steering part.

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Old 09-22-2009, 04:19 PM
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hmm.... not sure on that one buddy. I know its been done!
 
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Old 09-22-2009, 09:19 PM
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if your using leaf springs its no big deal at all if its going to be coil over its going to be alot worse. reccomend running full high steer nothing better on a lifted truck. crossover will also work but it wont be near as nice when your flexing itll bind up a little more and/or hit rock and other things on the ground. i have straight axled truck after truck so feel free to pm me if you got any questions i might be able to help ya out

do you plan on using a dana 44 or a dana 60? if you are wanting to use a dana 44 i reccomend using a chevy axle not a dodge (easier to find parts for, cheaper parts, and i think they brakes are set up better IMO) not to mention if you get one out of a 73-75 with flat top knuckles itll save you alot of money if you choose to run high steer
 
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Old 09-22-2009, 09:51 PM
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Yea i fully built my 75 gmc with 11's of lift, bigger axles, built 355 motor, etc..

Im just going with leafs and cross-over, nice and simple but affective and reliable.

Im wanting to run a Dana 60 because of having a Cummins motor, so a havier duty axle I would rather have.
 
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Old 09-22-2009, 10:00 PM
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I think your going to have to find a donor truck. The engine crossmember is different between 2 and 4wd. Some of the spring hanger holes are there and you have to drill others. I have never done it just trying to remember what I have read over the years.
 
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Old 09-22-2009, 10:06 PM
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if you want to do it all stock a donor truck would be great. but it all depends on how you want it done. i mean you can always go the backyard way and use 2" square tubing up front with some spring hangers on them, and run some shackles off the rear spring part of the frame, than move your perches on your axle to make it work. of course thats not the best way to do it but it would work. its all about how much money you want to spend.

and just remembe rnothing is ever a matter of can it be done, it just takes time, money, and a little elbow grease
 
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Old 09-23-2009, 10:35 AM
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My plan is to built a drop hanger in the front for the springs, then shalkes in the rear with either dodge or chevy HD springs in the front, and then just lift the rear with some springs, buy brake line's, front driveshaft, transferaase, axle, gears, and tires.
 
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Old 09-23-2009, 11:02 AM
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for my current project my 95 chevy with my 12 valve cummins im straight axling right now. but due to the weight of the cummins motor i set it up so that i could run superduty springs off the powerstroke trucks. theyre 3" wide instead of 2.5 and they alot longer, and prices on the springs are reasonable. and with the added length itll give you a much smoother ride
 
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Old 09-23-2009, 01:44 PM
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Yea I do like the superduty springs, nice, thick and very heavy duty. I'll probley go with superduty springs, D60 front, NP203 or NP205, Drop hanger in front and shakles in back, that should be about it besides brake line's, drive shaft and cross-over steering.
 
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